HangZhou Hoyee trade Co.,Ltd


PTFE Double Seat Control Valve

PTFE Double Seat Control Valve

ZXN series Pneumatic double seat Control Valve Characteristics: Two guide structure with Multiple springs actuator.The structure is compact、lighter weight、quick operation、large valve capacity、flow features accurate、flow characteristics accuracy、easy to dismounting.This series product have...

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Product Details

ZXN series Pneumatic double seat Control Valve Characteristics:

This is a kind of pressure balance type of control valve. The body structure is compact, the valve has low pressure drop loss, large flow rate, wide adjustable range, high precision flow characteristic curve.  Multi-spring loaded diaphragm actuator has the advantages of compact body and high power output. The flow dynamic is stability, the valve has low noise, less air corrosion, appropriate for high-low temperature of high-low pressure fluid.


1. Top and bottom two guide structure,good steady performance.

2. Two valve plug and valve seat.

3. Big allowable operation pressure.

4. Big adjusting range.


Specification and technical date

Up bonnet        ambient temperature (P): -17 ~+230℃

                        elongating type (E1): -45~-17 ℃, +230~+566 ℃

                        elongating type (E2):forming (E2I) -100 ~-45 ℃
                                                         welding (E2W)  -196~-100 ℃


Packing rings:  V type teflon padding 

                        Teflon impregnated asbestos packing

                        Flexible graphite packing


Actuator          type: LHA  multi-spring loaded diaphragm actuator

                       diaphragm material:  ethylene propylene rubber nylon

                       action type: air-to-open or  air-to-close


Performance     leakage: metal seat accord to ANSI B 16.104/ lessthan 0.1% of Cv

                                        teflon seat accord to ANSI B 16.104/  less than 10-7 of Cv

                                        high temperature metal seat  accord to ANSI B 16.104/ lessthan 0.5% of Cv


                         reseat: 3% (without locator)

                                     1% (with locator)


                         linear:  +/-5% (without locator)

                                     +/-1% (with locator)


adjustable range:         50:1


Hoyee has invested in quality assurance, state-of-the-art machining and testing facilities in order to assist customers in safely controlling their processes.

Our patented technology allows us to offer a product that has better and more consistent quality than our competitors.

Our competitive advantage:

Consistent product quality and reduction of defective rate

Improved manufacturing process and better productivity

Significant cost reduction versus competitors

Hoyee engineers are happy to help you with your automation demands.



Packing Details: Wooden box and plywood case, standard export  packing.
In addition that we can  design and pack as your request.
Delivery Details : Shipped in 5-15 days after payment.



Q: Are you trading company or manufacturer?

A: We are factory.

Q: How long is your delivery time?

A: About 15 days after deposit.

Q: Do you provide samples? Is it free or extra?

A: Yes, we could offer the sample. Due to its value, we do not offer free sample, but you can visit our factory to check its quality.

Q: What is your terms of payment?

A: 30% T/T in advance ,balance before shippment.

PTFE Double Seat Control Valve.jpg

 Mail address:Infor@hoyeevalve.com

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